And stanley b



2 Sheets-Sheet 1.

(No M01191.)

N E Z U D N. A V C B PUMP.

' Patented Dec. 12,1882;

itest N. PETERS. PhmoLitm n nur. wamington. D. C,

BENJAMIN O. VANDUZEN LAFFERTY, OF NASHVILLE, DAVENPORT, IOWA.

, OF CINCINNATI, OHIO PATENT. rrrcn.

, ASSIGNOR TO HERBERT D.

TENNESSEE, AND STANLEY B. LAFFERTY, OF

SPECIFICATION forming part of Letters Patent No. 268,844, dated December 12 1882.-

7 Application filed May 26, 1882. (No model.)

To all whom it may concern:

Be it known that I, BENJAMIN G. VANDU-' ZEN, of the city of Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Pumps, of which the following is a specification.

My invention relates more particularly to that class of pumps known as double-acting 1o pumps, and in which it is desired to lift the various plungers and valves from the well independently of the remaining portions of the pump, one ofthe principal features of my invention having reference to the means for retaining the pistons or plungers and the cylinders in position with relation to each other.

Another of the principal features of my invention consists in general, of application of piston-packing forjoints.

In the drawings forming part of this specification I show other features of invention, for which I make no claim in this invention, as they are the subjects of claims in another application for Letters Patent.

Figure 1 of the drawings is an elevation of a pump embodying the principle of my invention, the parts below the body being represented in section. Fig. 2 is an elevation of-the body of the pump viewed in a line at right ano gles to that seen in" Fig. 1. Fig. 3 isan enlarged central section throu pistons and dischargepipe, and grippinghooks. Fig. 4 is a horizontal section taken at the line 00 as of Fig. 3.

A is the standard of the pump, which is vproperly secured to the base A, or otherwise secured to the curb. To this standard is connected the upper end of the discharge-pipe B, to the lower end of which is connected the pumping-cylinder G. The cylinder 0 is provided with a lateral extension, a, into which is screwed the lower end of the discharge-pipe B, thus placing'the cylinders at one side of said discharge-pipe. This extension (it has a 5 passage, a, which establishes communication between the cylinders and the discharge-pipe. The cylinder 0 preferably extends a short distance above the passage to, and this upper end is provided with a surrounding flange, b, progh the cylinders,

jecting outwardly from the outer face of said cylinder, and being beveled or rounded at its upper outer corner, as shown. The upper cylinder, O, is smaller than the cylinder (1, and is provided near its center with a surrounding flange, b, in the periphery of which is an elastic packing, D. At the lower end of the cylinder O are a number of lugs or an open flange, d,located around the periphery of the cylinder, so that when the cylinder O is in position with relation to the cylinder 0 these guiding lugs or flange will rest against theinner face of the cylinder 0 and keep the latter cylinder in line with cylinder 0. When the space S between the cylinders is to be employed as an air-chamber, the flange (I, when employed, must be an open one. The packing D forms a tight joint between the two cylinders, and below this packing the air-space between the cylinders serves as an air-chamber, S, which promotes a steady flow of water from the pump.

To the upper end of the cylinder 0 are connected the upwardly'extending brackets c, be-

hooks or catches E, one of said hooks being located at either side of the cylinder. Each of these hooks is provided with a beveled head, F, having a projection which is capable of fitting under the-flange b on the upper end of the cylinder 0. From the inner face of each of the hooks E, at a point just above the cylinder 0, projects a lug,f, extending inwardly toward the pump-rod,

The usual pistons, G G, are connected to the pump-rod H, and are located respectively in the cylinders O G. Y Y On the pump-rod is placed a H, which is capable of being moved up or down on said rod, and may be secured in the desired position by-a set-screw, h. The purpose of this collar, or e force the cylinder 0 t sliding collar,

with reference to the cylinder 0, which it does by coming in contact with the upper ends of the brackets e, and when the pump-rod is forced down the cylinder 0 is also forced down until the heads F on the ends of the hooks E have passed under the flange b on the upper end of tween which are pivoted the upper ends ofthe quivalent means, is to o the-proper position the cylinder 0. WVhen the flange b has been thus engaged by the hooks E the cylinder cannot be separated from the cylinder 0 until 1 the lower ends of the hooks have been separated so as to disengage them from the flange b, when the cylinder U can be lifted from the cylinder 0 by means of the pump-rod H.

The manner in which the hooks E- are disengaged from the flange b is preferably as follows: The upper disk or plate, g, of the valve G has an upwardly-extending central portion, 9, conoidal in shape, and the upper end ofthe cylinder 0 has an opening through which this conoidal portion may project, and when the pump-rod is raised sufficiently to cause it to so project the inclined sides of this portion come in contact with the ends of the lugsf projecting from the inner faces of the hooks E, and the lower ends of the latter are thus separated and disengaged from the flange b. When the cylinder 0 and the pistons areto be placed in position in the well, they are connected to the lower end of the pump-rod H, and arelet down into the well until the lower end of the cylinder 0 has entered the upper end of the cylinder 0, and the packing D being below the ends of the hooks E, the cylinder 0 has to be forced down into the cylinder 0 until the beveled heads F of the hooks have passed the flange b, and it is so forced down by the collar 11.

From the inner faces of the hooks E, a little above their lower ends, project hooks or stops J, which prevent the cylinder 0 from being forced too far down intothecylinderO. When the cylinders are in position and the pump-rod connected to the pump-handle, as shown in Fig. 1, the pump-rod cannot be raised far enough to bring the portion 9" of the disk in contactwith the lugs f and cause the lower ends of the hooks E to separate. When it is desired to remove the pistons from the well the pumprod H is disconnected fromthe pump-handle. The rod can be raised, andas it is raised the conoidal portion or block g comes in contact with the lugsf and causes the hooks E to be disengaged from the flange b, and the piston G coming in contact with the upper end of the cylinder 0, it, together with the pistons, may be lifted from the well, the pump-rod serving as a lifting-rod. If desired, afloating air-chamber, K, may be placed within the discharge-pipe B; but this may be omitted, and the air-space at around the lower end of the cylinder 0 will serve as the air-chamber. When preferred, only one hook or catch may be employed, instead of two or more. The presence of a piston-joint applied to a pumpcylinder or a cylinder-headis a necessity where hooks are employed to hold the cylinder or cylinder-headin proper position. The pistonjoint also offers great advantages in allowing the cylinder or cylinder-head or other parts to be advanced or retracted as desired. For illustration: This joint in the present instance allows the cylinder 0 to be readily moved through cylinder 0 far enough to enable the end m of rod H to engage with and make connection with the arch M of valve N, so that the lattercan be withdrawn with the pump-rod and cylinder 0; and where the hook or hooks or grappling devices are altogether omitted, the partsbeing held together in some other way, the piston-packing enables a cylinder or cylinder-headto be quickly and readily brought to place or removed. The hook or hooks may be placed on the lower tube or cylinder, or attached to the pump-rod or to any other suitable point, and their shape and the mechanism for engaging the same be correspondingly altered.

One or more of the various features of my invention may be used in connection with the particular form of pump shown, or with other forms and descriptions of pumps, so far as the said features may be applicable thereto. For example, one of the principal features of my invention consists of the catches or hooks arranged to catch over or engage with a projection or projections of the pump-cylinder or cylinder-head to be lifted and enable the-latter to be lifted from the well or cistern, and this feature may, with a few obvious mechanical connections, be applied to lift out the cylinder-head in a pump which contains but one cylinder.

Having thus described my invention, what I claim as new and of my invention, and desire to secure by Letters Patent, is as follows:

1. In a double-cylinder pump, the combination of the cylinder 0, connected to the discharge-pipe of the pump, and the upper cylinder, 0, located in the upper end of the cylinder 0, and provided with books or grappling devices E for retaining the said cylinders in position with relation to each other, substantially as and for the purposes specified.

2. The cylinder 0, connected to the discharge-pipe B, and provided at its upper end with the surrounding flange b, in combination with the cylinder 0, provided with appropriate packing, and having pivoted to its upper end the books or catches E for engaging with the flange b on the cylinder 0, substantially as and for the purposes specified.

'3'. The combination of the cylinders 0 Of, formed substantially as described, the hooks or catches E, pivoted to bracket 6 on the upper end of the cylinder 0, and provided with lugs f, and the c'onoidal block g, connected to the pump-rod, substantially as and for the purposes specified.

4. The cylinder 0, provided with flange b, in combination with the cylinder 0, having surrounding collar 12, provided with packing, and the lugs d, and having hooks or catches E, pivoted to brackets c on the upper end of said cylinder, and means afflxed to the pump-rod to IIO facilitate forcing down the cylinder U, subthe lugs d, and having hooks or catches E. pivoted to brackets e on the upper end of said cylinder, and the collar H, located on the pump-rod, substantially as and 'for the purposes specified.

6. The pump rod provided with the conoidal block g, and the hooks or catches supported and hungsubstantially as described, and the stationary cylinder provided with projection for the engagement of said catches, substantially as and for the purposes specified.

7. The books or catches hung upon that portion of the pumping device which is to belifted from the well along with the pump rod and piston, in combination with the stationary cylinder provided with projection for the engagement of said catches, and means for the disengagement of said catches. (when the pump is lifted,) substantially as and .for the purposes specified.

8. The hooks or catches hung upon that portion of the pumping-cylinder which is to be lifted from the well along with the pump-rod, and provided with stop-hooks J, and stationary cylinder, adapted (at its upper edge) to receive the impingementof said stop-hooks, and provided with projection for the engagement of said catches, and means for the disengagement thereof, (when the pump is to be lifted,) substantially as and for the purposes specified.

9. The combination of the fixed cylinder 0 and the removable cylinder 0', the latter being provided with an exterior piston-packing,-D, capable of sliding within the cylinder 0, substantially as and for the purposes specified.

10. The'hooks E, provided with stop-hooks J, in combination with the tube or cylinder 0 and the cylinder 0, the last-named cylinder-being provided with a projection or projections for engaging the said stop-hooks J, substantially as and for thepurposes specified.

11. The hooks E, provided with stop-hooks J, in combination with the tube orcylinder C and a cylinder, and the projection for engaging said first-named hooks, substantially as and for the purposes specified.

BENJAMIN O. VANDUZEN.

Attest:

E. R. HILL, WM. E. J oNEs. 

